BAE rear main cap. This main cap is made from billet alum. and anodized for galling protection between to like surfaces. If you smoke the rear main out of your motor you will be needing a cap and a saddle to get the block fixed up. If a racer needs to order a new rear main cap RBS wil need to now if coarse or fine thread in the side bolts of the block, a center to center between the two studs in the main cap, and a width of the rear main cap space in the engine block. Saddle and rear main cap replacement will take a qualified engine builder/machinist to install.
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